PENGARUH PEMBERIAN METODE BIRTH BALL TERHADAP INTENSITAS NYERI PERSALINAN KALA 1 FASE AKTIF DI BPM SITI JULAEHA. JURNAL IBU DAN ANAK [Internet]. 2020 May 18 [cited 2026 Jan. 19];5(2):102-9. Available from: https://jurnal.pkr.ac.id/JIA/article/view/214